Recent

There are numerous ways to find out whether or not there is an internet connection present. One of the quickest ways is to use the InternetGetConnectedState API. Here is how

The BitBlt function simply performs a bit-block transfer of the color data corresponding to a rectangle of pixels from a source device context into a destination device context. You can

A SynchronizationContext allows one thread to communicate with another thread. For example, to update the User Interface thread (UI Thread) from an outside thread you could do something like the

LINQ?is?very?good?and?efficient?when?it?comes?to?handling?data?coming?from?a?datasource.?This?little?example?creates?a?Table?object.?Then?creates?a?DataContext?to?interpret?the?Table?data,?and?finally?does?a?query?to?extract?the?wanted?data. ????????[Table(Name?=?”Courses”)] ????????public?class?Courses?//Create?Courses?Table ????????{ ????????????[Column(IsPrimaryKey?=?true,?DbType?=?”BIGINT?NOT?NULL?IDENTITY”,?IsDbGenerated?=?true)] ????????????public?Int32?CourseID;?//Field ????????????[Column] ????????????public?string?CourseDesc;?//Field ????????} ????????????????using?(DataContext?dcCourses?=?new?DataContext(“CONNECTION_STRING))?//Connect?to?DB ????????????????{ ????????????????????var?data?=?(from?c?in?_Courses ????????????????????????????????where?c.CourseID?==?ComboBox1.SelectedIndex ????????????????????????????????select?new?{?c.CourseDesc?} ????????????????????).FirstOrDefault();?//Select?CourseID?That?Corresponds?to?ComboBox?Selection ????????????????????TextBox1.Text?=?data.Name;?//Display ?????????????????}

There are umpteen ways to determine whether or not a TextBox in a group of TextBoxes is empty. Usually whilst doing Form validation, you need to ensure all data has

The classes in .NET are structured to read files from the beginning to end. Hard drives are structured like that, sometimes though there is a dire need to read a

In order to lock your computer, you need to use the following two APIs: [DllImport(“user32.dll”)] public static extern void LockWorkStation(); [DllImport(“user32.dll”)] public static extern int ExitWindowsEx(int uFlags, int dwReason); You

It is quite easy to minimize all currently opened windows with C#. All you need to know is a few APIs: FindWindowSendMessageTimeout Here is a small example: public partial class

It is possible to prevent a system shutdown from within your C# apps. Basically the premise is as follows: Override the WndProc event so that when a system shutdown event